His agent says Grizzard died Tuesday at a New York hospital of complications from lung cancer.
Grizzard's film roles included a bullying U.S. senator in "Advise and Consent" in 1962 and an oilman in "Comes a Horseman" in 1978. On television, Grizzard made appearances on "Law & Order" and won a best supporting actor Emmy for the 1980 TV movie "The Oldest Living Graduate," which starred Henry Fonda.
But Grizzard considered himself primarily a stage actor. He appeared in the original 1962 production of "Who's Afraid of Virginia Woolf?" by Edward Albee and won a Tony more than 30 years later in 1996 for his performance in a revival of Albee's "A Delicate Balance."